Advertisements
Advertisements
Question
Sketch the lines of force of the magnetic field of a solenoid. How does its field compare with that of a bar magnet?
Advertisements
Solution
The magnetic field of a solenoid is very similar to that of a bar magnet. the given figure shows, respectively, the lines of force of the magnetic field of a current-carrying solenoid and a bar magnet.
RELATED QUESTIONS
How does a solenoid behave like a magnet? Can you determine the north and south poles of a current-carrying solenoid with the help of a bar magnet? Explain.
What effect will there be on a magnetic compass when it is brought near a current carrying solenoid?
Draw the pattern of magnetic field lines of a solenoid through which a steady current flows. What does the pattern of field lines inside the solenoid indicate?
Derive the expression for the heat produced due to a current ‘I’ flowing for a time interval ‘t’ through a resistor ‘R’ having a potential difference ‘V’ across its ends. With which name is the relation known? How much heat will an instrument of 12W produce in one minute if it is connected to a battery of 12V?
The diagram shows a current-carrying coil passing through a cardboard sheet. Draw three magnetic lines of force on the board.
State two factors on which magnitude of magnetic field at the centre depends.
The magnetic field lines outside a bar magnet:
The pattern of the magnetic field produced by the straight current-carrying conducting wire is ____________.
The diagram below shows a magnet moved near a coil along its axis. Which of the diagram shows correct flow of current during this motion?
A circuit contains a battery, a variable resistor and a solenoid. The figure below shows the magnetic field pattern produced by the current in the solenoid.
- State how the magnetic field pattern indicates regions where the magnetic field is stronger.
- What happens to the magnetic field when the current in the circuit is reversed?
When does a solenoid behave as a magnet? Draw the pattern of the magnetic field produced inside it showing the directions of the magnetic field lines.
